/**
 * 
 */
package com.airlines.common;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;

import org.apache.commons.lang3.StringUtils;

/**
 * @author xxxx
 * @date 2017年1月13日
 * @company xxxx Airlines
 * @description
 */
public class HttpUtil {
	  /** 
     * 发送GET请求 
     *  
     * @param url 
     *            目的地址 
     * @param parameters 
     *            请求参数，Map类型。 
     * @return 远程响应结果 
     */  
    public static String sendGet(String url, Map<String, String> parameters) { 
        String result="";
        BufferedReader in = null;// 读取响应输入流  
        StringBuffer sb = new StringBuffer();// 存储参数  
        String params = "";// 编码之后的参数
        try {
            // 编码请求参数  
            if(parameters.size()==1){
                for(String name:parameters.keySet()){
                    sb.append(name).append("=").append(
                            java.net.URLEncoder.encode(parameters.get(name),  
                            "UTF-8"));
                }
                params=sb.toString();
            }else{
                for (String name : parameters.keySet()) {  
                    sb.append(name).append("=").append(  
                            java.net.URLEncoder.encode(parameters.get(name),  
                                    "UTF-8")).append("&");  
                }  
                String temp_params = sb.toString();  
                params = temp_params.substring(0, temp_params.length() - 1);  
            }
            String full_url = url + "?" + params; 
            System.out.println(full_url); 
            // 创建URL对象  
            java.net.URL connURL = new java.net.URL(full_url);  
            // 打开URL连接  
            java.net.HttpURLConnection httpConn = (java.net.HttpURLConnection) connURL  
                    .openConnection();  
            // 设置通用属性  
            httpConn.setRequestProperty("Accept", "*/*");  
            httpConn.setRequestProperty("Connection", "Keep-Alive");  
            httpConn.setRequestProperty("User-Agent",  
                    "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");  
            // 建立实际的连接  
            httpConn.connect();  
            // 响应头部获取  
            Map<String, List<String>> headers = httpConn.getHeaderFields();  
            // 遍历所有的响应头字段  
            for (String key : headers.keySet()) {  
                System.out.println(key + "\t：\t" + headers.get(key));  
            }  
            // 定义BufferedReader输入流来读取URL的响应,并设置编码方式  
            in = new BufferedReader(new InputStreamReader(httpConn  
                    .getInputStream(), "UTF-8"));  
            String line;  
            // 读取返回的内容  
            while ((line = in.readLine()) != null) {  
                result += line;  
            }  
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            try {  
                if (in != null) {  
                    in.close();  
                }  
            } catch (IOException ex) {  
                ex.printStackTrace();  
            }  
        }
        return result ;
    }  
  
    /** 
     * 发送POST请求 
     *  
     * @param url 
     *            目的地址 
     * @param parameters 
     *            请求参数，Map类型。 
     * @return 远程响应结果 
     */  
    public static String sendPost(String url, Map<String, String> parameters) {  
        String result = "";// 返回的结果  
        BufferedReader in = null;// 读取响应输入流  
        PrintWriter out = null;  
        StringBuffer sb = new StringBuffer();// 处理请求参数  
        String params = "";// 编码之后的参数  
        try {  
            // 编码请求参数  
            if (parameters.size() == 1) {  
                for (String name : parameters.keySet()) {  
                    sb.append(name).append("=").append(  
                            java.net.URLEncoder.encode(parameters.get(name),  
                                    "UTF-8"));  
                }  
                params = sb.toString();  
            } else {  
                for (String name : parameters.keySet()) {  
                    sb.append(name).append("=").append(  
                            java.net.URLEncoder.encode(parameters.get(name),  
                                    "UTF-8")).append("&");  
                }  
                String temp_params = sb.toString();  
                params = temp_params.substring(0, temp_params.length() - 1);  
            }  
            // 创建URL对象  
            java.net.URL connURL = new java.net.URL(url);  
            // 打开URL连接  
            java.net.HttpURLConnection httpConn = (java.net.HttpURLConnection) connURL  
                    .openConnection();  
            // 设置通用属性  
            httpConn.setRequestProperty("Accept", "*/*");  
            httpConn.setRequestProperty("Connection", "Keep-Alive");  
            httpConn.setRequestProperty("User-Agent",  
                    "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");  
            // 设置POST方式  
            httpConn.setDoInput(true);  
            httpConn.setDoOutput(true);  
            // 获取HttpURLConnection对象对应的输出流  
            out = new PrintWriter(httpConn.getOutputStream());  
            // 发送请求参数  
            out.write(params);  
            // flush输出流的缓冲  
            out.flush();  
            // 定义BufferedReader输入流来读取URL的响应，设置编码方式  
            in = new BufferedReader(new InputStreamReader(httpConn  
                    .getInputStream(), "UTF-8"));  
            String line;  
            // 读取返回的内容  
            while ((line = in.readLine()) != null) {  
                result += line+"\r\n";  
            }    
        } catch (Exception e) {  
            e.printStackTrace();  
        } finally {  
            try {  
                if (out != null) {  
                    out.close();  
                }  
                if (in != null) {  
                    in.close();  
                }  
            } catch (IOException ex) {  
                ex.printStackTrace();  
            }  
        }  
        return result;  
    }  
    
    /**
     * 发送Json格式的post请求
     * @param url
     * @param jsonParms
     * @return
     * @throws IOException
     */
    public static String sendPost(String url,String jsonParms)throws IOException{
        OutputStreamWriter out = null;
        BufferedReader reader = null;
        String response="";
        try {
            URL httpUrl = null; //HTTP URL类 用这个类来创建连接
            //创建URL
            httpUrl = new URL(url);
            //建立连接
            HttpURLConnection conn = (HttpURLConnection) httpUrl.openConnection();
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Content-Type", "application/json");
            conn.setRequestProperty("connection", "keep-alive");
            conn.setUseCaches(false);//设置不要缓存
            conn.setInstanceFollowRedirects(true);
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.connect();
            //POST请求
            out = new OutputStreamWriter(
                    conn.getOutputStream());
            out.write(jsonParms);
            out.flush();
            //读取响应
            reader = new BufferedReader(new InputStreamReader(
                    conn.getInputStream()));
            String lines;
            while ((lines = reader.readLine()) != null) {
                lines = new String(lines.getBytes(), "utf-8");
                lines+="\r\n";
                response+=lines;  
                
            }
            reader.close();
            // 断开连接
            conn.disconnect();

        } catch (Exception e) {
        e.printStackTrace();
        }
        //使用finally块来关闭输出流、输入流
        finally{
        try{
            if(out!=null){
                out.close();
            }
            if(reader!=null){
                reader.close();
            }
        }
        catch(IOException ex){
            ex.printStackTrace();
        }
    }

        return response;
    }
    
    
    
    /** 
     * 发送POST请求 
     *  
     * @param url 
     *            目的地址 
     * @param parameters 
     *            请求参数，Map类型。 
     * @param cookie 
     * @return 远程响应结果 , 0 为内容， 1是cookie
     */  
    public static String[] sendPost(String url, Map<String, String> parameters,String cookie) {  
        String[] resultAndCookie = {"",""};
    	String result = "";// 返回的结果  
        BufferedReader in = null;// 读取响应输入流  
        PrintWriter out = null;  
        StringBuffer sb = new StringBuffer();// 处理请求参数  
        String params = "";// 编码之后的参数  
        try {  
        	if(!parameters.isEmpty()){
	            // 编码请求参数  
	            if (parameters.size() == 1) {  
	                for (String name : parameters.keySet()) {  
	                    sb.append(name).append("=").append(  
	                            java.net.URLEncoder.encode(parameters.get(name),  
	                                    "UTF-8"));  
	                }  
	                params = sb.toString();  
	            } else {  
	                for (String name : parameters.keySet()) {  
	                    sb.append(name).append("=").append(  
	                            java.net.URLEncoder.encode(parameters.get(name),  
	                                    "UTF-8")).append("&");  
	                }  
	                String temp_params = sb.toString();  
	                params = temp_params.substring(0, temp_params.length() - 1);  
	            } 
        	}
            // 创建URL对象  
            java.net.URL connURL = new java.net.URL(url);  
            // 打开URL连接  
            java.net.HttpURLConnection httpConn = (java.net.HttpURLConnection) connURL  
                    .openConnection();  
            // 设置通用属性  
            httpConn.setRequestProperty("Accept", "*/*");  
            httpConn.setRequestProperty("Connection", "Keep-Alive");  
            httpConn.setRequestProperty("User-Agent",  
                    "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");  
            //设置 cookie
            httpConn.setRequestProperty("Cookie", cookie);//设置session
            // 设置POST方式  
            httpConn.setDoInput(true);  
            httpConn.setDoOutput(true);  
            // 获取HttpURLConnection对象对应的输出流  
            out = new PrintWriter(httpConn.getOutputStream());  
            // 发送请求参数  
            out.write(params);  
            // flush输出流的缓冲  
            out.flush();  
            // 定义BufferedReader输入流来读取URL的响应，设置编码方式  
            in = new BufferedReader(new InputStreamReader(httpConn  
                    .getInputStream(), "UTF-8"));  
            String line;  
          
            // 读取返回的内容  
            while ((line = in.readLine()) != null) {  
                result += line+"\r\n";  
            }  
            
            String cookieVal =httpConn.getHeaderField("Set-Cookie");    //获取session     
            if(StringUtils.isNotEmpty(cookieVal)){
	            String JSESSIONID = (cookieVal.substring(0,cookieVal.indexOf(";")));
	            resultAndCookie[1] = JSESSIONID;
            }
            
            
        } catch (Exception e) {  
            e.printStackTrace();  
        } finally {  
            try {  
                if (out != null) {  
                    out.close();  
                }  
                if (in != null) {  
                    in.close();  
                }  
            } catch (IOException ex) {  
                ex.printStackTrace();  
            }  
        }  
        
        resultAndCookie[0] = result;
        return resultAndCookie;  
    }  
    
    
    
    /** 
     * 发送Get请求 
     *  
     * @param url 
     *            目的地址 
     * @param parameters 
     *            请求参数，Map类型。 
     * @param cookie 
     * @return 远程响应结果 , 0 为内容， 1是cookie
     */  
    public static String[] sendGet(String url, Map<String, String> parameters,String cookie) { 
    	String[] resultAndCookie = {"",""};
        String result="";
        BufferedReader in = null;// 读取响应输入流  
        StringBuffer sb = new StringBuffer();// 存储参数  
        String params = "";// 编码之后的参数
        try {
            // 编码请求参数  
            if(parameters.size()==1){
                for(String name:parameters.keySet()){
                    sb.append(name).append("=").append(
                            java.net.URLEncoder.encode(parameters.get(name),  
                            "UTF-8"));
                }
                params=sb.toString();
            }else{
                for (String name : parameters.keySet()) {  
                    sb.append(name).append("=").append(  
                            java.net.URLEncoder.encode(parameters.get(name),  
                                    "UTF-8")).append("&");  
                }  
                String temp_params = sb.toString();  
                params = temp_params.substring(0, temp_params.length() - 1);  
            }
            String full_url = url + "?" + params; 
            System.out.println(full_url); 
            // 创建URL对象  
            java.net.URL connURL = new java.net.URL(full_url);  
            // 打开URL连接  
            java.net.HttpURLConnection httpConn = (java.net.HttpURLConnection) connURL  
                    .openConnection();  
            // 设置通用属性  
            httpConn.setRequestProperty("Accept", "*/*");  
            httpConn.setRequestProperty("Connection", "Keep-Alive");  
            httpConn.setRequestProperty("User-Agent",  
                    "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");  
            
            //设置 cookie
            httpConn.setRequestProperty("Cookie", cookie);//设置session
            // 建立实际的连接  
            httpConn.connect();  
            // 响应头部获取  
            Map<String, List<String>> headers = httpConn.getHeaderFields();  
            // 遍历所有的响应头字段  
            for (String key : headers.keySet()) {  
                System.out.println(key + "\t：\t" + headers.get(key));  
            }  
            // 定义BufferedReader输入流来读取URL的响应,并设置编码方式  
            in = new BufferedReader(new InputStreamReader(httpConn  
                    .getInputStream(), "UTF-8"));  
            String line;  
            // 读取返回的内容  
            while ((line = in.readLine()) != null) {  
            	 result += line+"\r\n";  
            }  
            
            String cookieVal =httpConn.getHeaderField("Set-Cookie");    //获取session     
            if(StringUtils.isNotEmpty(cookieVal)){
	            String JSESSIONID = (cookieVal.substring(0,cookieVal.indexOf(";")));
	            resultAndCookie[1] = JSESSIONID;
            }
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            try {  
                if (in != null) {  
                    in.close();  
                }  
            } catch (IOException ex) {  
                ex.printStackTrace();  
            }  
        }
        resultAndCookie[0] = result;
        return resultAndCookie;  
    } 
    
}
